Just did this on our '84 222 yesterday
Larry, Both previous posts are right. There are some brackets underneath the keel on the flat edge, at the forward end. My boat has 2 big phillips head bolts in each of the two metal brackets,with a small screw (on each bracket) which attaches the brackets to a spacer of sorts. This all comes out when you remove the brackets. The pivot is a removeable nylon plug of a thing. Be advised, this keel is HEAVY. It worked nicely with 2 people to remove it. If you're going to paint it, as we did, you may hang it from its pivot hole, or just lay it flat on some sawhorses. It is roughly the size of your rudder. It is also a good time to inspect your cable that raises the CB up. We (my husband and I)are replacing ours, as it was quite frayed, and the outer layer of the rope was loose, jamming things so you couldn't get the CB up. This cable is a specialty part. It has (3/8" I think) rope braided into (1/8")wire cable, with a sort of shackle on the end which attaches to your CB. We sent our old one in to West Marine for duplication, and it looks just like the old one. All they had to do was replace the rope/cable braid with new, and the old shackle went right back on. At $61 including tax and shipping, it's not a cheap fix. I figure 18 years of constant wear and tear isn't bad mileage. It should last another 18. All this started with buying a "ready to sail" boat. The more work we do, the more work we find to do...At least the bottom's about done now...hehe...good luck!!